70cc Cylinder Piston Big Bore Kit for Yamaha Minarelli Horizontal Type Engine.
For 50cc 2-Stroke 40QMB, E40QMB, 1E40QMB and 1PE40QMB Minarelli Engines to increase drive power. Fits Most Chinese Scooters With Jog / Minarelli / Yamaha Clone Motors. --70cc 2-Stroke Big Bore Kit For Chinese Scooters.